Improvement in feed devices for rolling-mills



ZSheetv-Sheet 1.

S. VAN'STONE.

Feed-Device for Rolling-Mills;

Patented Sept. 21,1876.-

N. PETERS, FHOTO-LITNOGRAPHER. WASHINGTON, D C.

2 Shee ts--Sheet 2.

s. VANSTDNEQ Feed-Device for Rolling-Mills. N0.I67,86I.

' Patented Sept. 21,1875.

4 WlTfg/iSES. I mvsmon.

@fi/Z/Mn/ N-PETERS. PNOTO-LITHOGNAPHEIL WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

SAMUEL VANSTON E, OF PROVIDENCE, ASSIGNOR OF TWO-THIRDS HIS RIGHT TO HENRI E. BACON, OF PAWTUOKET, AND LYSANDER FLAGG, OF

LINCOLN, RHODE ISLAND.

IMPROVEMENT IN Peso DEVICES FOR ROLLING-MILLS.

Specification forming part of Letters Patent No. [67,861, dated September 21, 1875; application filed March 3, 1875.

To all'whom it may concern: v

Be it known that I, SAMUEL VANSTONE, of the city of Providence, State of Rhode Island, have invented a new and useful Improvement in Machinery for Rolling Gun-Barrels and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the.

accompanying drawings, forming part of this specification.

Figure I is an elevation, showing the position of the parts when the barrels to be rolled are laid upon the same, and in broken lines the position of the parts when the bnrrelsare fed to the rolls. Fig. II is a' cross-section of the machine, showing the clamping device for feeding the barrels to the rolls, as also therolls in view. Fig. III is a top View of the machine, showing the rolls and the gage by which the skelps or the prepared steel, out of which the barrels are formed, are laid in the proper position with reference to the rolls, as

also the feeding device.

Similar letters of reference indicate corresponding parts.

The object of this invention is to so arrange a machine for rolling gun-barrels that the barrels or skelps to be rolled may be fed automatically and accurately to the rolls, so that the same may be always rolled exactly alike, and without the skilled labor now required to produce this result.

The nature of this invention consists in the application to a set of rolls for rolling gunbarrels of a feeding device for feeding the barrels skelp to the rolls, as is more fully described hereinafter.

In rolling gun-barrels the skelp, or the piece of steel, having a hole of the proper diameter through its center, is placed on a mandrel, and is passed between two rolls, on the face of which corresponding grooves are made, in which the barrel is rolled. These grooves correspond to the form of the finished barrel,

' giving the required taper, and also the enlargement at the breech end.

Great experience and skill are required to enter the skelp at the exact point on the roll are paid for such work, and as only few men acquire the necessary skill the works are dependent on these for the number of barrels required.

The two rolls "a. a are connected by the two gear-wheels O 0, so that the relativeposition of the rolls and the relative position of the grooves will always be maintained. In front of the rolls I place the distance-gage G, against which the barrel-skelps are placed, resting on the sliding table D. On this table the clamping-jaws E E are secured, and to a laterally moving slide-plate, D, the clamping-jaws f f are secured. At one end ofthe sliding plate D the wedge-shaped block H is secured, This is operated upon by the arm I, having also awedge-shape section part of its length. One end of this arm is secured by a strong pin to the roller-frame, and the other end is connected by the arm N with the footplate L. When now the skelps for the gunbarrels are placed between the clamping-jaws E E and f f, and the operative depresses the foot-plate with his foot, the arm I descends with the foot-plate L, and, pressing against the block H, forces the sliding plate D laterally, and thus brings the clamping-jaws E E andff against the skelps and holds the same firmly. Connected also with the arm I is the carrier-arm M, by which the reciprocating arm K is supported at or near the hooked end, the other end being connected by a pin to the gear-wheel O. This arm K reciprocates vertically by the revolution of the rolls and the gear 0, and when the foot-plate L and with the same the arm I is depressed, the hooked end engages with therocking-shaft O, and as this .shaft is connected by a strut with the under side of the table D the table and the clamped barrel-skelps are brought in contact with the rolls always at the same point on the rolls, and always in the grooves b 1), without any particular skill exerted by the operative. The positions of all the parts at this time are indicated by broken lines. As soon as the rollers take hold of the skelps the footplate is released and a new batch of skelps is placed upon the table, and the previous oper ation repeated. H

To enable the operative to" lay" the barrel skelps into the exact position required, so that the end nearest the rolls shall be at the exact distahtefrohrthe rollst'o he delivered at; the" precise moment when the smallest part of the grooves is ready to receive the same, l-place close to the rolls the gage G, against which the operative places the forward end of the skelpsr This age G passes along one side of the frame, and issecnred a pin forming: a

fnlcrn The" other nd asses down under the i qtpitte L; and Vifhe'nf the ame- 1s de pressed the gage near the; rolls isf ra'i'sed, and the harrel-skelps arenonr freetob'e fed to the arises-storms the hooked endof the arm K h thefoot-pla-te n, with the slidingtahleD" and the grooved rollers 11 a, substantially as- 1 and for the purpose set forth.

table D" toward the rolls". y

13y my improved machine the rtns he f at a higher s eed, and one'atthdaht am e labor required in the old process. A much the phr' ose setforth.

y supply a number oiharrls anthem-11s; j withoi'it the skill, experience, and ei'zhaiistive 1 the clamping-jaws E E secnred to the table, and the jaws f f 'secnred" to" the lateral slide D; with the arm "I acting upon the wedgeshaped block H and operated by the footplate L, and the grooved rollers a a, the whole operating together substantially as and for M 2. The combination of the arm K, secured to the gear-wheel O and supported by the Iariii M, with the shaft 0 and the tablel), when operating together-and in connection with the grooved rollers 00 dgas andfohthe purpose described.

3. The combination ofthe gage Gmfiihtd M SAMUEL VANSTONEJ Witness-es: y

JOSEPH: A. Murine, WM. 0. CEASE. 

